Traits taxon details
original description
Stainbrook, M. A. 1937. New echinoderms from the Devonian Cedar Valley Formation of Iowa. The American Midland Naturalist 18, 899-904. page(s): 899-901; pl. 1: figs. 5-7, 9 [details]
basis of record
Kier, P. M. & Lawson, M. H. 1978. Index of living and fossil echinoids 1924-1970. Smithsonian Contributions to Paleobiology 34, 1-182., available online at https://doi.org/10.5479/si.00810266.34.1 page(s): 4 [details] Available for editors 
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